Hart, B. L.; Hart, L. A.; McCoy, M.; Sarath, C. R. (November 2001). "Cognitive behaviour in Asian elephants: use and modification of branches for fly switching". Animal Behaviour. 62 (5): 839–847. doi:10.1006/anbe.2001.1815. S2CID53184282.
Seid, M. A.; Castillo, A.; Wcislo, W. T. (2011). "The Allometry of Brain Miniaturization in Ants". Brain, Behavior and Evolution. 77 (1): 5–13. doi:10.1159/000322530. PMID21252471. S2CID6177033.
Seid, M. A.; Castillo, A.; Wcislo, W. T. (2011). "The Allometry of Brain Miniaturization in Ants". Brain, Behavior and Evolution. 77 (1): 5–13. doi:10.1159/000322530. PMID21252471. S2CID6177033.
Hart, B. L.; Hart, L. A.; McCoy, M.; Sarath, C. R. (November 2001). "Cognitive behaviour in Asian elephants: use and modification of branches for fly switching". Animal Behaviour. 62 (5): 839–847. doi:10.1006/anbe.2001.1815. S2CID53184282.
Seid, M. A.; Castillo, A.; Wcislo, W. T. (2011). "The Allometry of Brain Miniaturization in Ants". Brain, Behavior and Evolution. 77 (1): 5–13. doi:10.1159/000322530. PMID21252471. S2CID6177033.